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25 Cards in this Set
- Front
- Back
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functions of skeletal system
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movement, support, protection
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types of skeletons
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endo- and exo-skeletons
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pros and cons of endoskeleton
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it is internal: greater movement less protection
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pros and cons of exoskeleton
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it is external: less movement and more protection
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function of muscular system
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muscles contract and expand and cause all body movement
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skeletal muscle
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attached to bone, voluntary movement
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smooth muscle
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makes up internal organs, helps with digestion and excretion
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cardiac muscle
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makes up the heart, used to pump blood
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the process to release energy in cells is called
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cellular respiration
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aerobic respiration
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uses oxygen, makes more energy, example is jogging
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anaerobic respiration
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does not use oxygen, makes less energy and causes lactic acid build up, example is lifting weights
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excretion in unicellular organisms
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the cell membrane is selectively permeable to let waste out, contractile vacuoles pumps the waste out
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functions of excretory system
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filters out waste, re-absorbs re-usuable products (water and salts)
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structures of the excretory system
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kidneys- have tubules inside that filter out waste & re-absorbs useful materials
ureter- tube that the waste goes into from kidneys to the bladder bladder- storage of waste (urine) urethra- tube used to excrete urine lungs- removal of CO2 skin- removal of excess salts & water |
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funtions of circulatory system
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delivers oxygen and nutrients to cells
transports CO2 and wastes out of cells maintains homeostasis transports hormones to signal body |
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white blood cells
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infection fighting cells in blood
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platelets
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clots the blood
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red blood cells
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transport oxygen and carbon dioxide, contain red pigment hemoglobin, formed in bone marrow
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arteries
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take blood away from the heart
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veins
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carry blood to the heart
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capillaries
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type of blood vessel
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functions of respiratory system
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brings oxygen into the body, and carbon dioxide out, breathing
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structures of respiratory system
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nose, trachea= windpipe covered in epiglottis when swallowing, bronchi- airways leading to the lungs covered in cilia and mucus cells, lungs, alveoli- air sacs that are the site of gas exchange
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how breathing occurs
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inhaling, then nerves cause diaphragm to contract and increase volume in lungs, air moves in and gas exchange occurs
exhaling, diaphragm relaxes and decreases volume in lungs, air moves out through gas exchange |
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bronchitis
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inflamation of the mucus membranes of the bronchi
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